Stainless steel 310/310S is an austenitic heat resistant alloy with excellent resistance to oxidation under mildly cyclic conditions through 2000ºF. Its high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation and the retention of a larger fraction of room temperature strength than the common austenitic alloys like Type 304. Stainless 310 is often used at cryogenic temperatures, with excellent toughness to -450°F, and low magnetic permeability.

**As you can see below, Grade 310S is a low carbon version of grade 310. 310S is less prone to embrittlement and sensitization in service.

310 UNS S31000 Chemical Composition, %

Cr

Ni

C

Si

Mn

24.0-26.0

19.2-22.0

.25 Max

1.50 Max

2.00 Max

P

S

Mo

Cu

Fe

.045 Max

.03 Max

.75 Max

.50 Max

Balance

310S UNS S31008 Chemical Composition, %

Cr

Ni

C

Si

Mn

24.0-26.0

19.2-22.0

.08 Max

1.50 Max

2.00 Max

P

S

Mo

Cu

Fe

.045 Max

.03 Max

.75 Max

.50 Max

Balance

What are the characteristics of 310/310S Stainless?

Oxidation resistance to 2000°F

Moderate strength at high temperature

Resistance to hot corrosion

Strength and toughness at cryogenic temperatures

Typical Applications for 310/310S Stainless

Kilns

Heat Exchangers

Radiant Tubes

Muffles, retorts, annealing covers

Tube hangers for petroleum refiing adn steam boilers

Coal gasifier internal components

Saggers

Furnace parts, conveyor belts, rollers, oven linings, fans

Food processing equipment

Cryogenic structures

Fabrication with Stainless 310/310S

Type 310/310S is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly.

Type 310/310S can be welded using all of the common welding processes.